In 2nd qus , from author point of view, they all are incorrect.
For the exam, from which prospective, we have to think?
I think ye qus sir ne class me discuss Kiya tha tb sir ne bhi bola tha ki isme is qus me transaction cost n all ko consider krke 1st option sahi kiya h.. i did class long time back. So meko recall nahi ho rha ki sir ne further kya bola tha exam k lie kese consider kre …pls answer of anyone one know.
Questions based on the same will not be opaque. They’ll clearly mention if such a question comes in the exam as to from which point of view you need to think.